File:Echinosphaerites.JPG

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Description	The Ordovician cystoid Echinosphaerites (an extinct echinoderm) from northeastern Estonia; approximately 5 cm in diameter.
Date	2007-10-21 (original upload date)
Source	Photograph taken by Mark A. Wilson (Department of Geology, The College of Wooster).
Author	Original uploader was Wilson44691 at en.wikipedia
Permission ( Reusing this file)	Released into the public domain (by the author).

Licensing

This work has been released into the public domain by its author, Wilson44691 at the wikipedia project. This applies worldwide.

In case this is not legally possible:
Wilson44691 grants anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law.

File usage

The following pages on Schools Wikipedia link to this image (list may be incomplete):

Ordovician

Metadata

This file contains additional information, probably added from the digital camera or scanner used to create or digitize it. If the file has been modified from its original state, some details may not fully reflect the modified file.

Camera manufacturer	NIKON
Camera model	E4500
Exposure time	1/68 sec (0.014705882352941)
F-number	f/4.4
ISO speed rating	100
Date and time of data generation	11:38, 16 October 2007
Lens focal length	12.6 mm
Orientation	Normal
Horizontal resolution	300 dpi
Vertical resolution	300 dpi
Software used	Adobe Photoshop CS Macintosh
File change date and time	14:21, 3 January 2009
Y and C positioning	Co-sited
Exposure Program	Normal program
Exif version	2.2
Date and time of digitizing	11:38, 16 October 2007
Image compression mode	3
Exposure bias	0
Maximum land aperture	2.8 APEX (f/2.64)
Metering mode	Pattern
Light source	Unknown
Flash	Flash did not fire, compulsory flash suppression
Colour space	sRGB
Custom image processing	Normal process
Exposure mode	Auto exposure
White balance	Auto white balance
Digital zoom ratio	0
Focal length in 35 mm film	60 mm
Scene capture type	Standard
Contrast	Normal
Saturation	Normal
Sharpness	Normal
Subject distance range	Unknown

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